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Connectors

A connector connects two pipelines. It consumes data as an exporter at the end of one pipeline and emits data as a receiver at the start of another pipeline. It can consume and emit data of the same or different data type. It can generate and emit data to summarize the consumed data, or it can merely replicate or route data.

Routing Connector

The Routing Connector routes logs, metrics, and traces to specified pipelines according to resource attributes and their routing conditions, which are written as OpenTelemetry Transformation Language (OTTL) statements.

The Routing Connector is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.
OpenTelemetry Collector custom resource with an enabled Routing Connector
  config: |
    connectors:
      routing:
        table: (1)
          - statement: route() where attributes["X-Tenant"] == "dev" (2)
            pipelines: [traces/dev] (3)
          - statement: route() where attributes["X-Tenant"] == "prod"
            pipelines: [traces/prod]
        default_pipelines: [traces/dev] (4)
        error_mode: ignore (5)
        match_once: false (6)
    service:
      pipelines:
        traces/in:
          receivers: [otlp]
          exporters: [routing]
        traces/dev:
          receivers: [routing]
          exporters: [otlp/dev]
        traces/prod:
          receivers: [routing]
          exporters: [otlp/prod]
1 Connector routing table.
2 Routing conditions written as OTTL statements.
3 Destination pipelines for routing the matching telemetry data.
4 Destination pipelines for routing the telemetry data for which no routing condition is satisfied.
5 Error-handling mode: The propagate value is for logging an error and dropping the payload. The ignore value is for ignoring the condition and attempting to match with the next one. The silent value is the same as ignore but without logging the error. The default is propagate.
6 When set to true, the payload is routed only to the first pipeline whose routing condition is met. The default is false.

Forward Connector

The Forward Connector merges two pipelines of the same type.

The Forward Connector is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.
OpenTelemetry Collector custom resource with an enabled Forward Connector
# ...
receivers:
  otlp:
    protocols:
      grpc:
  jaeger:
    protocols:
      grpc:
processors:
  batch:
exporters:
  otlp:
    endpoint: tempo-simplest-distributor:4317
    tls:
      insecure: true
connectors:
  forward:
service:
  pipelines:
    traces/regiona:
      receivers: [otlp]
      processors: []
      exporters: [forward]
    traces/regionb:
      receivers: [jaeger]
      processors: []
      exporters: [forward]
    traces:
      receivers: [forward]
      processors: [batch]
      exporters: [otlp]
# ...

Spanmetrics Connector

The Spanmetrics Connector aggregates Request, Error, and Duration (R.E.D) OpenTelemetry metrics from span data.

The Spanmetrics Connector is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.
OpenTelemetry Collector custom resource with an enabled Spanmetrics Connector
# ...
  config: |
    connectors:
      spanmetrics:
        metrics_flush_interval: 15s (1)
    service:
      pipelines:
        traces:
          exporters: [spanmetrics]
        metrics:
          receivers: [spanmetrics]
# ...
1 Defines the flush interval of the generated metrics. Defaults to 15s.

Additional resources